Machine for constructing hollow concrete building-blocks.



I APPLIOATION rmzn oar/19, 1007. 900,272.

Patehtd- 0a. 6, 1903.

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ES$E$ Amy;

I N, D- C nu. "dams FETIRS o., wAsumm-n J. PISH. MACHINE FOROQNSTRUGTING HOLLOW GONGRB'I'E BUILDING BLOCKS.

APPLICATION rimm on. 19, 1901.

Patented Oct. 6, 1908.

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5 9 T 1 N]- 6 5 6 .2, nT 4 o Ll 2 00 n n0 u 0 v z I. I. lo W l 2 V r 2fl i /5 V l m 1 1 F! M 6 W W "T 8 6 4 MW "mu O on O M when the frame 19is in its elevated position, as shown in Fig. 2 the mold members and thecores will be disposed in closed position, or with the mold ready toreceive the cementitious material which forms the building blocks.

Pivoted at 787 9 to the leg members 11 are levers 80 81, the leversconnected at their outer ends by a transverse hand bar 82. Projectingfrom the arms 2223 are bearings 83-84, and connected between theselatter bearings and the levers 80 are links 8586, the links pivoted attheir ends respectively to the bearings 8384 and the levers 8081. Bythis simple means it will be obvious that when the levers 8()-81 are intheir downward position, as shown in Fig. 1, the frame 19 and itsattachments will be in their lower positions, as shown in Figs. 1 and 3,and when the levers are elevated the frame 19 and its attachments willbe in their elevated positions, as in Fig. 2 while the transverseconnecting member 82 will engage beneath the projecting arms 30-31, andthus firmly lock the follower mechanism in elevated position, while atthe same time the lock is easily broken by a slight outward pressure aplied to the member 82. The follower member 19 is thus maintained when inelevated position against the under side of the frame 15, and byadjusting the post 13 through the medium of the set screws 17-18, theposition of the frame 15 may be controlled to enable the lock device tooperate with precision, andthus cause the proper cooperation of theparts. Thus by moving the levers 8081 by the end member 82 upwardly anddownwardly the mold members will be opened and closed, as required, andthe mold members locked in their closed position as above described. Thecore members 21 are provided with laterally extending bases, as shown,to increase their stability.

It will thus be obvious that a very simply constructed apparatus isprovided in which building blocks may be quickly molded, and after themolding operation is completed and the material has sufficiently set themold members and the cores may be quickly withdrawn, leaving the blockositioned upon the plate 15, and from whicfi it may be readily removed,and the a paratus arranged for the molding of other b ocks, and so oncontinu ously. By providing the side and end members of the moldstructure of different thicknesses blocks of different sizes may beconstructed, and by providing a plurality of the cores 21 of varioussizes, and bottom members 15 having apertures 15 corres ending to thevarious sizes of the cores, b ocks of various sizes may be constructedwith the same machine, as will be obvious.

By arranging the posts 13 in adjustable relations to the frames 10 and15, the machine may be separated for shipment or transportation, andlikewise for adjustment, as required.

Having thus described the nature of the invention, what is claimed asnew is:-

1. In an apparatus of the class described, a supporting base, astationary frame, guide elements spaced apart and connectim thestationary frame and the base, a fol ower frame movable upon said guideelements, mold supporting frames swinging from said stationary frame,movable links between said mold supporting frames and follower frame,levers swinging from said base and connected at their free ends by atransverse member adapted to bear beneath the follower frame when inelevated position, and links connecting said follower frame and lovers.

2. In an apparatus of the class described, a supporting base havingspaced vertical sockets, guide elements movable in said sockets, meansfor securing said guide elements in their adjusted positions in saidsockets, a stationary frame carried by said guide elements, moldsupporting frames swinging from said stationary frame, a follower framemovable upon said guide elements, coupling devices between said followerframe and swinging mold frame, levers swinging from said base andconnected at their free ends by a transverse member adapted to bearbeneath the follower frame when in elevated position, and coupling meansbetween said levers and follower frame.

3. In an apparatus of the class described, a supporting base, astationary frame spaced from said base, a mold device comprising movableelements and carried by said stationary frame, a follower, connectingmeans between the elements of said mold and said follower, leversswinging from said base, a transverse member connecting the free ends ofsaid levers and adapted to bear beneath the follower when elevated, andconnecting means between said levers and follower.

In testimony whereof I affix my signature, in presence of two witnesses.

JOHN FISH.

Witnesses:

GEORGE OLTSOH, G. M. COLE.

